1381118 has 8 divisors (see below), whose sum is σ = 2080512. Its totient is φ = 687616.

The previous prime is 1381111. The next prime is 1381141. The reversal of 1381118 is 8111831.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1381093 and 1381102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1381111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 830 + ... + 1857.

It is an arithmetic number, because the mean of its divisors is an integer number (260064).

2^1381118 is an apocalyptic number.

1381118 is a deficient number, since it is larger than the sum of its proper divisors (699394).

1381118 is a wasteful number, since it uses less digits than its factorization.

1381118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2946.

The product of its digits is 192, while the sum is 23.

The square root of 1381118 is about 1175.2097685094. The cubic root of 1381118 is about 111.3636854947.

Adding to 1381118 its reverse (8111831), we get a palindrome (9492949).

The spelling of 1381118 in words is "one million, three hundred eighty-one thousand, one hundred eighteen".